Freescale Semiconductor Evaluation Board for MPC5500 Series MPC5554EVBE MPC5554EVBE Datenbogen

Freescale Semiconductor

12

To avoid this condition, minimize the ramp time of the V

DD

 supply to a time period less than the time 

required to enable the external circuitry connected to the device outputs.

During initial power ramp-up, when Vstby is 0.6v or above. a typical current of 1-3mA and maximum of 
4mA may be seen until V

DD 

is applied. This current will not reoccur until V

stby

 is lowered below V

stby

 

min. specification.

STBY

 worst-case specification to estimate values at 

different voltages and temperatures. The vertical lines shown at 25 



C, 60 



C, and 150 



 are 

the actual I

DD_STBY

.